Precor EFX 5.17I User manual

5.17i Elliptical Fitness Crosstrainer

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5.17i Elliptical Fitness Crosstrainer

Warning: This service manual is for use by Precor trained service providers only.

If you are not a Precor Trained Servicer, you must not attempt to service any Precor Product;

Call your dealer for service.

This document contains information required to perform the majority of troubleshooting, and

replacement procedures required to repair and maintain this product.

This document contains general product information, software diagnostic procedures (when

available), preventative maintenance procedures, inspection and adjustment procedures,

troubleshooting procedures, replacement procedures and electrical block and wiring diagrams.

To move directly to a procedure, click the appropriate procedure in the bookmark section to the

left of this page. You may “drag” the separator bar between this page and the bookmark section

to change the size of the page being viewed.

Unauthorized Reproduction and Distribution Prohibited By Law

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Section One - Things You Should Know

Right, Left, Front, and Back Conventions

In this manual, right, left, front, and back are from the perspective of a user standing on the EFX

5.17i, facing the display enclosure.

Warning and Caution Statements and General Safety Guidelines

Warning statements indicate a particularly dangerous activity. Warning statements you will find in

this manual include:

• To remove power from the EFX 5.17i, the power cord must be disconnected from the wall

outlet. Always ensure that the EFX 5.17i is unplugged from the wall outlet when you inspect

or adjust the EFX 5.17i, or when you isolate, remove, or replace a EFX 5.17i component.

• Removing the covers exposes high voltage components and potentially dangerous

machinery. Exercise extreme caution when you perform maintenance procedures with the

hood removed.

• During service operations you will be very close to moving machinery and high voltage

components. When you perform maintenance procedures with the covers removed, remove

jewelry (especially from ears and neck), tie up long hair, remove neck ties, and do not wear

loose clothing.

• Exercise caution when touching any wire or electrical component during EFX 5.17i

operation.

Caution statements are intended to prevent damage to the EFX 5.17i as a result of the current

activity. Caution statements included in this manual are listed below:

• Notice the orientation notch on the PROM. These components must be positioned with the

same notch orientation.

Safety guidelines you should know and follow include:

• Read the owner’s manual and follow all operating instructions.

• Visually check the EFX 5.17i before beginning service or maintenance operations. If it is not

completely assembled or is damaged in any way, exercise extreme caution while operating

and checking the EFX 5.17i.

• When operating the EFX 5.17i, do not wear loose clothing. Do not wear shoes with heels or

leather soles. Check the soles of your shoes and remove any embedded stones. Tie long

hair back.

• Do not rock the unit. Do not stand or climb on the handlebars, display enclosure, or cover.

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• Do not set anything on the handlebars, display enclosure, or cover. Never place liquids on

any part of the EFX 5.17i other than a water bottle in the water bottle holder during normal

operation.

• To prevent electrical shock, keep all electrical components, such as the power cord and

circuit breaker away from water and other liquids.

• Do not use accessory attachments that are not recommended by the manufacturer-such

attachments might cause injuries.

General Information

For the latest exploded view, part number and part pricing information, visit the Precor dealer

website at “www.precor.com/connection.

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Required Tools and Equipment

The following list is a summary of the tools and equipment required when you service Precor’s

EFX 5.17i.

TOOLS EQUIPMENT

phillips and flat-head screwdrivers anti-static wrist strap (20024-101)

digital multimeter

standard and metric allen wrench sets

open-end wrench set Supplies

blue loctite

drive ratchet and ratchet set

socket drive allen set cable ties

chip puller Spares

rubber mallet interconnect cables

snap ring pliers

100 ft./lb. torque wrench

300 in./lb. torque wrench

belt gauge (part # 20030-117)

Pitman Arm Puller or 4” to 6” gear puller

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Procedure 2.1 - Accessing the Diagnostic Program

The EFX 5.17i diagnostic software cycles through the following tests:

• Display Test

• Keyboard Test

• Heart Rate Test

• Lift A/D Test

• Brake (eddy current) Test

Procedure

1. Plug the power cord into the wall outlet, then turn on the EFX 5.17i with the on/off switch.

Note:

For the purpose of entering the key sequences to access the various diagnostic programs, the

keypad keys are hypothetically numbered from 1 to 7 from left to right.

2. With the PRECOR banner displayed, access the diagnostic program by pressing, keys

RESET,5,1,7,6,5,7,6,1, sequentially.

Diagram 2.1 - 5.17i Display

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3. Watch the display as the LED test progresses. The test is programmed to display the

following LED illumination sequence:

a. The test name “DISPLAY TEST” will be scrolled.

b. All of the L.E.D.s on the display will be illuminated.

3. Press the RESET key to proceed to the keyboard test.

4. The test name “KEYBOARD TEST” will be scrolled.

5. A graphical representation of all the keys on the keyboard will be displayed. When a key is

pressed the representation of the key will become a single dot. Check all of the keys on the

keyboard in this manner.

6. Press and hold the RESET key for a minimum of 2 seconds to proceed to the heart rate test.

7. The test name “HEART RATE TEST” will be scrolled.

8. If the optional heart rate receiver is not installed, the message “NO HEART RATE

RECEIVER will be scrolled. Skip to step 11.

9. A chest strap heart rate transmitter or a heart rate test transmitter must be used in

conjunction with this test.

10. When a heart rate signal is received, the Polar heart rate will be displayed as “P XXX” and

the SCAN L.E.D. will flash in time with the heart rate. Press the SELECT key, the unfiltered

heart rate will be displayed as “U XXX”. Press the SELECT key, the filtered hear rate will

be displayed as “F XXX”.

11. Press the RESET key to proceed to the lift test.

12. The test name “LIFT A/D TEST” will be scrolled.

13. The lift calibration number will be displayed on the right. The lift calibration number indicates

the physical position of the incline and is used to calibrate the lift motor. Press the SELECT

key, RAMP will scroll followed by the ramp position. Press the SELECT key, SEC TO CHG

will scroll followed by the transition time. Press the SELECT key, GLITCHES will scroll

followed by the glitch count.

14. Press the RESET key to proceed to the brake test.

15. The test name “BRAKE” will be scrolled

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16. The resistance level will be displayed on the left side of the display and the corresponding

power bits (duty cycle) will be displayed on the right side of the display. Initially, the power

bits level will be zero, pressing the ▲, ▼ keys will change the number of power bits being

applied to the eddy current system. Press the SELECT key, RESISTANCE will scroll

followed by the resistance setting.

17. Press the RESET key to exit the diagnostics program.

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Procedure 2.2 - Accessing the Information Display

Procedure

1. Plug the power cord into the wall outlet, then turn on the EFX 5.17i with the on/off switch.

2. With the PRECOR banner displayed, press keys RESET,6,5, sequentially.

The EFX 5.33 Information display cycles through the following displays:

a. Odometer

b. Hour meter

c. Software version

d. Error log

5. The display name “STRIDES: XX” will scroll. The strider value will be displayed, as total

strides accumulated.

6. Press the RESET key to proceed to the hour meter display.

7. The display name “HOURS: XX” will scroll. Then the hour meter value will be displayed, as

the total number of hours of use. Fractional parts of an hour are stored internally, the display

will be truncated to the nearest full hour.

8. Press the RESET key to proceed to the software version display.

9. The upper software version “UPPER SW: VER X.XX” will scroll. Press the SELECT key,

The upper software version “LOWER SW: VER X.XX” will scroll. Press the SELECT key,

The upper boot software part number “UPPER BOOT: XXXXX-XXX” will scroll.

10. Press the RESET key to proceed to the error log display

11. The first error log entry will “1: ER XX AT XX STRIDES XX HOURS” will scroll. If the error

code log is empty the message NO ERRORS will scroll

12. Pressing the ▲, ▼ keys will move you through the log entries. Entry 1 will be the most recent

error log entry, with each succeeding entry being older than the preceding entry.

13. Pressing and holding the QUICK START key for will clear all existing entries from the error

log. The display will confirm that the error log has been cleared by displaying OK. The

display will scroll the message NO ERRORS. If the QUICK START key is not held until OK

is scrolled, the error log will not be cleared.

14. Press the SELECT or RESET key to exit the information display program.

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Procedure 2.3 - Accessing the Set User Parameters Display

Selecting United States standard units causes information to be displayed in miles. Information is

displayed in kilometers if metric units are selected. After you select a measurement standard, the

software accumulates and records workout information in the units of the measurement standard

selected.

Procedure

1. Plug the power cord into the wall outlet, then turn on the EFX 5.17i with the on/off switch.

2. With the PRECOR EFX 5.17i banner displayed, press keys RESET,5,6,7,1, sequentially.

3. The display name “SELECT UNITS” will be scroll.

4. One of two measurement standards will be displayed, U. S. Standard or Metric.

5. If U. S. Standard is selected, weights will be in pounds and distances will be in miles. If

Metric is selected, weights will be in kilograms and distances in kilometers.

6. Pressing any arrow key will toggle the units of measure between US Standard and Metric.

7. Press the ENTER key to save the currently displayed selection and exit the set user

parameters display or press the RESET key to leave the selection unchanged and exit the

set user parameters display.

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Procedure 2.4 - Documenting Software Problems

When a problem is found with either the software or upper or lower PCA’s, record the information

listed below. If you isolated the problem to either the PROM, upper PCA, or lower PCA, include

the information you have recorded with the malfunctioning PROM or PCA when you ship it to

Precor.

When a problem occurs, record the following information:

• Model and serial number

• Software version numbers for upper and lower PCA’s. Refer to Procedure 2.2.

• User and program number running when the problem occurred

• A description of:

a. What happened or failed to happen.

b. The action taken by the user just before the problem occurred.

c. Problem-related information (such as how far into the program the problem occurred,

the work level being used when the problem occurred, etc.).

• The frequency of occurrence.

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Section Three - Preventive Maintenance

Preventive maintenance measures are either scheduled or unscheduled. Scheduled preventive

maintenance activities are included here so that you are aware of the preventive measures to be

performed on a regular basis.

Regular Preventive Maintenance (Owner)

Cleanliness of the EFX 5.17i and its operating environment will keep maintenance problems and

service calls to a minimum. Precor recommends that you perform the following preventive

maintenance schedule.

At the End of Each Day

Wipe down the stairarms, ramps, wheels and frame with a damp cloth.

Every Week

Wipe the surface of the electronic console with a slightly-damp sponge or soft cloth. Dry with a

clean towel.

CAUTION

Keep water away from electronic components to prevent shock.

On-Site Preventive Maintenance (Service Technician)

Perform the following preventive maintenance tasks each time you are called to service a EFX

5.17i:

Examine the belts for wear, cracks or other signs of deterioration and replace if necessary.

Check the LED’s mounted on the upper PCA and the function keys displayed on the electronic

console by performing Procedure 2.1.

Visually examine all wires and check connectors and wire connections. Secure connections and

replace wiring as necessary.

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Section Four - Checking EFX 5.17i Operation

This section provides you with a quick method of checking EFX operation. Check the operation

of the EFX at the end of most maintenance procedures.

Procedure

1. Plug the power cord into the wall outlet and set the on/off switch in the “on” position.

2. With the PRECOR EFX 5.17i banner displayed, press QUICK START.

3. Select Resistance Level 1.

4. Operate the EFX for 4–5 minutes. As you operate the EFX, concentrate on the operating

sounds made by the unit. Be on the alert for unusual rubbing, hitting, grinding, or squeaking

noises.

5. If the EFX makes unusual noises or the electronic display does not change appropriately,

troubleshoot per section 6.

6. Press the RESISTANCE ▲ key until you reach Resistance Level 10. Operate the EFX for

another 2–3 minutes.

7. If the EFX resistance does not change or the operation of the EFX feels inconsistent

compared with Resistance Level 1, troubleshoot per section 6.

8. Press the RESISTANCE ▲ key until you reach Resistance Level 20. Operate the EFX for

another 2–3 minutes.

9. If the resistance of the EFX 5.17i does not change or the EFX operation feels inconsistent

with Resistance Levels 1 and 10, troubleshoot per Procedure 6.5.

10. Check the LED’s mounted on the upper PCA and the function keys displayed on the

electronic console by performing Procedure 2.1.

11. Turn off the EFX with the circuit breaker, then unplug the power cord from the wall outlet.

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Procedure 5.1 - Measuring the Resistance of an Eddy Current

Magnet

Caution

Remove power from the EFX before you measure magnet resistance.

Procedure

1. Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet.

WARNING

Before continuing with this procedure, review the Warning and Caution statements listed in

Section One, Things You Should Know.

1. Remove the rear cover as described in Procedure 7.1.

2. Set the ohmmeter to a range that will conveniently read up to 125 Ω.

3. Disconnect the magnet wires from the magnet using the quick disconnects shown in the

Diagram 5.1 or Diagram 5.2, below. Measure the resistance between the two magnet wires.

Diagram 5.1 - Eddy Current Magnet (serial code SB)

Note:

The resistance of the magnets will be higher than optimum (90 - 110 Ω) when they are warm.

Magnet

Wires

Eddy Current

Magnet

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Diagram 5.2 - Eddy Current Magnet (serial code AMPF)

4. If the resistance measures significantly less than 90 Ω or significantly more than 110 Ω.

THEN... OTHERWISE...

Replace the magnet as described Reconnect the magnet wires, then

in Procedure 7.13. continue with the next step.

5. Re-install the rear cover as described in Procedure 7.1, then check the operation of the unit

as described in Section Four.

6. Set the on/off switch in the “on” position. Thoroughly test all lift related functions per Section

Four.

Set the on/off switch in the “off” position, replace the front cover per Procedure 7.1.

Eddy Current

Magnet

Cable

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Procedure 5.2 - Inspecting and Adjusting Belt Alignment and

Tension

Procedure

1. Set the on/off switch in the “off” position, remove the A.C. line cord from the A.C. outlet.

WARNING

Before continuing with this procedure, review the Warning and Caution statements listed in

Section One, Things You Should Know.

2. Remove the rear cover as described in Procedure 7.1.

3. Remove both stairarms as described in Procedure 7.17.

4. Operate the unit by rapidly rotating a crankarm by hand. As the unit operates watch the

drive belts for proper alignment. The belts should operate parallel to each other and the

belts should maintain even spacing.

5. If the belts are not correctly aligned...

THEN... OTHERWISE...

Continue with the next step. Skip to step 13

6. Refer to Diagram 5.3 for the following belt alignment steps.The right and left step up belt

tension bolts have locking tabs. If necessary, use pliers to bend the locking tabs out of the

way so that the bolts can be turned.

7. If the step up pulley belt is out of alignment to the right, continue with step 9.

8. If the step up pulley belt is out of alignment to the left, continue with step 11.

9. Turn the left step up belt tension bolt 1/4 turn clockwise, then repeat step 4. If turning the left

adjustment bolt 1/4 of a turn was not sufficient, turn the right step up belt tension bolt 1/4 of

a turn counterclockwise.

10. Repeat step 8, alternating between the left and right step up belt tension bolts until the

alignment is correct. Continue with step 13.

11. Turn the right step up belt tension bolt 1/4 of a turn clockwise, then repeat step 4. If turning

the right step up belt tension bolt 1/4 of a turn was not sufficient, turn the left step up belt

tension bolt 1/4 turn counterclockwise.

12. Repeat step 11, alternating between the right and left step up belt tension bolts until the

alignment is correct.

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13. Belt tension must now be checked and if necessary corrected. Remember, if it is necessary

to change belt tension, the belt alignment must be maintained.

Diagram 5.3 - Drive Unit

14. Place a belt gauge (Precor part # 20030-117 or equivalent) in the middle of the step up belt

at the center of the belt span (see Diagram 5.4). Lay a straight edge along the length of the

belt and beside the belt gauge. Slide one of the o-rings up against the shoulder of the belt

gauge. Press downward on the belt gauge, causing the belt to deflect. Read the deflection

on the belt gauge at the edge of the straight edge. Deflect the belt 1/4”. Read the tension

across the top edge of the o-ring. If the belt is correctly tensioned the gauge will read

between 14 and 16 pounds.

15. If the tension in step 14 is correct skip to step 18. Otherwise continue with the next step.

Input

Belt

Step Up

Belt

Tensioner

Input Belt

Step Up Belt

Tension Bolt

Input Belt

Tension Bolt

Adjustment

Slot

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Diagram 5.4 - Measuring Belt Tension

16. If the locking tabs on the right and left step up belt tension bolts have not been straightened,

use pliers to bend the locking tabs out of the way so that the bolts can be turned.

IF... THEN...

The belt tensioning gauge reads Turn both tension bolts

less than 14 pounds clockwise, in equal quarter-turn

increments, until the belt tensioning

gauge reads 14 - 16 pounds @1/4” deflection.

The belt tensioning gauge reads Turn both tension bolts

more than 16 pounds counterclockwise, in equal

quarter-turn increments, until the belt

tensioning gauge reads 14 - 16 pounds @ 1/4”

deflection.

17. Verify that the belt alignment is still correct by performing the procedure in step 4.

18. When both the step pulley belt tension and alignment are correct, use pliers to bend the

tension bolt locking tabs into the “locking” position.

19. The input pulley tension must now be checked and corrected, if necessary. There is not

sufficient room to use the belt tension gauge to set the input pulley belt tension. It will be

necessary to use the correctly tensioned step up belt as a comparison to set the input belt

tension.

20. Using your finger, press in on the center of the step up pulley belt to get a feeling of how

much pressure it takes to deflect the belt a 1/4”.

15 lbs

1/4”

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21. Using your finger, press in on the center of the lower span of the input belt. Compare the

pressure required to deflect the input belt to the pressure required to deflect the step up belt.

22. Loosen the input belt tensioner axle bolt slightly. Slide a stout screwdriver blade into the

adjustment slot (See Diagram 5.3) to the left of the pulley. Using the screwdriver as a lever,

press the pulley to the right. While maintaining constant pressure on pulley, check the belt

tension with your finger. When the belt tension feels correct, tighten and torque the input

belt tension bolt to 200 inch pounds.

23. Replace the stairarms per Procedure 7.17.

24. Check the operation of the unit as described in Section Four, then re-install the rear cover

as described in Procedure 7.1

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Procedure 5.3 - Calibrating the Lift Motor

1. In order to calibrate the lift motor, it is necessary to disconnect the lift motor from the ramp

assembly.

2. Set the on/off switch in the “on” position. Lower the ramp to incline level 1 and set the on/off

switch in the “off” position. Remove the front cover.

3. Remove the two retaining clips from the lift pins. While supporting the ramp, remove the two

lift pins and carefully lower the ramp assembly until it is resting on the rear portion of the

front cover. (See Diagram 5.5).

Diagram 5.5 - Lift Motor Calibration

Lift Pin

Retaining Clips

Lift Pin

6-5/8”

L

Lift Nut

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4. Set the on/off switch in the “on” position. Enter the diagnostics routine per Procedure 2.1

and proceed to the LIFT A/D TEST portion of the procedure.

5. Operate the CROSSRAMP ▲ or CROSSRAMP ▼ keys as required to set the lift calibration

A/D number to 129.

6. Rotate the plastic lift nut on the lift motor drive screw until the distance from the upper

surface of the plastic lift nut to the end of the drive shaft is 6 -5/8”. If the lift motor drive screw

is allowed to rotate the lift calibration number will no longer be 129. The lift calibration

number must be 129 and the distance measurement must be correct for the lift calibration to

be correct. See Diagram 5.5.

7. Set the on/off switch in the “off” position. Do not exit the diagnostic program in the normal

manner. Exiting the diagnostic program will cause the lift to self center and invalidate the lift

calibration just performed.

8. Raise the ramp and position it so that the ramp mounting holes align with the holes in the

plastic lift nut. If it is necessary to rotate the lift nut to align it with the ramp, do not rotate it

any more than is required for alignment. Slide both lift pins through the ramp mounting holes

and into the plastic lift nut. Fasten both lift pins with the retaining cli[ps removed in step 3.

9. Set the on/off switch in the “on” position. Thoroughly test all lift related functions per Section

Four.

10. Set the on/off switch in the “off” position, replace the front cover per Procedure 7.1.

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Precor EFX 5.17I User manual

Precor EFX 5.17I User manual

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